[Elecraft] Data interface (WSJT-X)

[Hotel Kilo Alpha Delta Japon]

Hello all,

I want to know if someone here is using the DigiMaster Pro and If I could
get some advice on how to do the right audio cables myself so to be able to
use it with WSJT-X. I've got already the CAT one. This is the interface:

http://www.g4zlp.co.uk/unified/DM_PRO_PLUS_complete.shtml

Is there a simple way to workout the Tx (mic out) from my laptop into the
KX3? I can already control the radio via CAT but i'm kind of lost as on
what to do with sound cables.

TIA
HK4ADJ